condition mean min max 3 h after light 11.226144166666666 7.14267 16.1484 7 h after light 13.36511 8.31652 17.0308 11 h after light 13.823011666666666 9.13654 17.5153 2 h after dark 14.909775833333333 9.3993 21.9831 6 h after dark 11.841793333333333 8.93455 14.4034 10 h after dark 12.789692500000001 7.6917 18.7108